CVE-2016-6816

The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.

Affected

Apache Software Foundation · Apache Tomcat

CVSS v3.0 NVD

7.1 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

39.63% chance of exploitation in the next 30 days, 99th percentile

Published

2017-03-20

Updated

2024-11-14

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/41783

Security advisories

• https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.48
• https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.73
• https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.0.39
• https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.8
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.0.M13
• http://www.securityfocus.com/bid/94461
• advisories/GHSA-jc7p-5r39-9477
• http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• https://usn.ubuntu.com/4557-1

References

• CVE Record
• NVD entry